a flue arrangement的用法和样例：
- A flea and a fly flew up in a flue.
- A passage through which smoke and gases escape from a fire or furnace; a flue.
- A flea and a fly were trapped in a flue, and they tried to flee for their life.
- Flush system with hydrogen until required purity is reached. Vent all waste hydrogen through a flue or flare stack.